docs: Update the Text Threads page (#30576)

We had some broken links and outdated content here.

Release Notes:

- N/A

docs/src/ai/text-threads.md

@@ -32,11 +32,12 @@ If you want to start a new conversation at any time, you can hit <kbd>cmd-n|ctrl
 
 Simple back-and-forth conversations work well with the text threads. However, there may come a time when you want to modify the previous text in the conversation and steer it in a different direction.
 
-## Editing a Context {#edit-context}
+## Editing a Text Thread {#edit-text-thread}
 
-> **Note**: Wondering about Context vs. Conversation? [Read more here](./contexts.md).
-
-Text threads give you the flexibility to have control over the context. You can freely edit any previous text, including the responses from the LLM. If you want to remove a message block entirely, simply place your cursor at the beginning of the block and use the `delete` key. A typical workflow might involve making edits and adjustments throughout the context to refine your inquiry or provide additional information. Here's an example:
+Text threads give you the flexibility to have control over the context.
+You can freely edit any previous text, including the responses from the LLM.
+If you want to remove a message block entirely, simply place your cursor at the beginning of the block and use the `delete` key.
+A typical workflow might involve making edits and adjustments throughout the context to refine your inquiry or provide additional information. Here's an example:
 
 1. Write text in a `You` block.
 2. Submit the message with {#kb assistant::Assist}.
@@ -58,31 +59,26 @@ Some additional points to keep in mind:
 
 Slash commands enhance the assistant's capabilities. Begin by typing a `/` at the beginning of the line to see a list of available commands:
 
-- `/default`: Inserts the default prompt into the context
-- `/diagnostics`: Injects errors reported by the project's language server into the context
-- `/fetch`: Fetches the content of a webpage and inserts it into the context
-- `/file`: Inserts a single file or a directory of files into the context
-- `/now`: Inserts the current date and time into the context
+- `/default`: Inserts the default rule
+- `/diagnostics`: Injects errors reported by the project's language server
+- `/fetch`: Fetches the content of a webpage and inserts it
+- `/file`: Inserts a single file or a directory of files
+- `/now`: Inserts the current date and time
 - `/prompt`: Adds a custom-configured prompt to the context ([see Rules Library](./rules.md#rules-library))
-- `/symbols`: Inserts the current tab's active symbols into the context
-- `/tab`: Inserts the content of the active tab or all open tabs into the context
+- `/symbols`: Inserts the current tab's active symbols
+- `/tab`: Inserts the content of the active tab or all open tabs
 - `/terminal`: Inserts a select number of lines of output from the terminal
-- `/selection`: Inserts the selected text into the context
+- `/selection`: Inserts the selected text
 
-### Other Commands:
+> **Note:** Remember, commands are only evaluated when the text thread is created or when the command is inserted, so a command like `/now` won't continuously update, or `/file` commands won't keep their contents up to date.
 
-- `/search`: Performs semantic search for content in your project based on natural language
-  - Not generally available yet, but some users may have access to it.
-
-> **Note:** Remember, commands are only evaluated when the context is created or when the command is inserted, so a command like `/now` won't continuously update, or `/file` commands won't keep their contents up to date.
-
-#### `/default`
+### `/default`
 
 Read more about `/default` in the [Rules: Editing the Default Rules](./rules.md#default-rules) section.
 
 Usage: `/default`
 
-#### `/diagnostics`
+### `/diagnostics`
 
 The `/diagnostics` command injects errors reported by the project's language server into the context. This is useful for getting an overview of current issues in your project.
 
@@ -91,7 +87,7 @@ Usage: `/diagnostics [--include-warnings] [path]`
 - `--include-warnings`: Optional flag to include warnings in addition to errors.
 - `path`: Optional path to limit diagnostics to a specific file or directory.
 
-#### `/file`
+### `/file`
 
 The `/file` command inserts the content of a single file or a directory of files into the context. This allows you to reference specific parts of your project in your conversation with the assistant.
 
@@ -105,13 +101,13 @@ Examples:
 - `/file src/*.js` - Inserts the content of all `.js` files in the `src` directory.
 - `/file src` - Inserts the content of all files in the `src` directory.
 
-#### `/now`
+### `/now`
 
 The `/now` command inserts the current date and time into the context. This can be useful letting the language model know the current time (and by extension, how old their current knowledge base is).
 
 Usage: `/now`
 
-#### `/prompt`
+### `/prompt`
 
 The `/prompt` command inserts a prompt from the prompt library into the context. It can also be used to nest prompts within prompts.
 
@@ -119,13 +115,13 @@ Usage: `/prompt <prompt_name>`
 
 Related: `/default`
 
-#### `/symbols`
+### `/symbols`
 
 The `/symbols` command inserts the active symbols (functions, classes, etc.) from the current tab into the context. This is useful for getting an overview of the structure of the current file.
 
 Usage: `/symbols`
 
-#### `/tab`
+### `/tab`
 
 The `/tab` command inserts the content of the active tab or all open tabs into the context. This allows you to reference the content you're currently working on.
 
@@ -140,7 +136,7 @@ Examples:
 - `/tab "index.js"` - Inserts the content of the tab named "index.js".
 - `/tab all` - Inserts the content of all open tabs.
 
-#### `/terminal`
+### `/terminal`
 
 The `/terminal` command inserts a select number of lines of output from the terminal into the context. This is useful for referencing recent command outputs or logs.
 
@@ -148,7 +144,7 @@ Usage: `/terminal [<number>]`
 
 - `<number>`: Optional parameter to specify the number of lines to insert (default is a 50).
 
-#### `/selection`
+### `/selection`
 
 The `/selection` command inserts the selected text in the editor into the context. This is useful for referencing specific parts of your code.
 
@@ -156,9 +152,10 @@ This is equivalent to the `assistant: quote selection` command ({#kb assistant::
 
 Usage: `/selection`
 
-## Commands in the Rules Library (previously known as Prompt Library) {#slash-commands-in-rules}
+## Commands in the Rules Library {#slash-commands-in-rules}
 
-[Commands](#commands) can be used in rules to insert dynamic content or perform actions. For example, if you want to create a rule where it is important for the model to know the date, you can use the `/now` command to insert the current date.
+[Commands](#commands) can be used in rules, in the Rules Library (previously known as Prompt Library), to insert dynamic content or perform actions.
+For example, if you want to create a rule where it is important for the model to know the date, you can use the `/now` command to insert the current date.
 
 > **Warn:** Slash commands in rules **only** work when they are used in text threads. Using them in non-text threads is not supported.
 
@@ -166,7 +163,7 @@ Usage: `/selection`
 
 See the [list of commands](#commands) above for more information on commands, and what slash commands are available.
 
-### Example:
+### Example
 
 ```plaintext
 You are an expert Rust engineer. The user has asked you to review their project and answer some questions.